Heterogamy is when male and female gametes, which are found in most species, differ morphologically. antherozoids, or sperm, are the names for male gametes.
The terms "egg" and "ovum" refer to female gametes.
Female gametes are big, inert, and non-motile, whereas male gametes are tiny and mobile.
When male and female gametes combine, a diploid cell is created.
These gametes come in a variety of sizes and provide the foundation for sexual reproduction.
Isogamy, anisogamy, and oogamy are the three kinds of sexual reproduction.
In oogamy, the female gamete is large and non-flagellate, whereas the male gamete is small and flagellate.